Turning attachment for lathes.



No. 645,49I. Patented Mar. l3, I900.

.=G. REYNOLDS.

TURNING ATTACHMENT FUR LATHESN (Application filed Oct. 7, 1899.)

(No Model.)

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SPECIFICATION forming part of Letters Patent No. 645,491, dated March 13, 1900.

Application filed October 7, 1899.

To all whom it may concern.-

Be it known that I, GEORGE REYNOLDS, wood-turner, of the city of Toronto, in the countyof York, Province of Ontario, Canada, have invented certain new and useful Improvements in Turning Attachments for Lathes, of which the following is a specification.

My invention relates to improvements in turning attachments for lathes; and the object of the invention is to devise a suitable support for the turningtools for turning wooden rings, balls, and like articles, whereby such tools may be swung around and manipulated into the different positions required in a very simple manner and with but one op.- eration; and it consists, essentially, of providin g crosswise of the lathe a suitable guideway, in which is adj ustably held a plate and a guiding-ring, on which is supported the base-plate of the tool-standard, such toolstandard being longitudinally adjustable upon the plate and the parts being otherwise arranged and constructed in detail, as hereinafter more particularly explained.

Figure 1 is a perspective view of the bed portion of a lathe, showing my attachment applied thereto. Fig. 2 is a cross-section. Fig. 3 is a detail of the turning-tool. Fig. 4 is a sectional plan showing the means for securing the lower tool-holder in position.

In the drawings like letters of reference indicate corresponding parts in each figure.

A A is the bed of the lathe, and B a supplemental bed fitting crosswise thereon and provided with the guiding-grooves b b and the central slide 1).

(J is the bed-plate of my turning attachment, which is provided with the side ribs 0 c, which extend into the grooves 19 Z). The centralbwidenrib c is adapted to slide upon the rib b is a T-shaped slot extending for the major portion of the length of the rib b.

D is a bolt having the head fitting in a slot and the stem of the bolt extending up through the bed-plate O. A nut d, provided with a handle d fits onto the threaded end of the bolt and is manipulated so as to loosen or tighten the bolt D, and thereby permit of the bedplate being moved laterally crosswise of the lathe. This bed-plate is of course set in the desired position for turning any desired wooden article of manufacture and is permanently set during the operation.

0 is a circular plate which is provided with a groove 0 which fits upon the projecting ring (2 at the top of the plate 0, such plate being designed to be turned upon such ring. The plate 0 is held in place by the retainingscrew 0 E are guiding-ribs attached to or forming part of the plate O.

F is the base-plate of the turning standard F, which plate is provided with the side ribs f to fit the guiding-ribs E.

O is'a lug formed at one end of the plate C, and G is a lever provided with a handle 9 and pivoted on the pin g, between the lugs f, forming part of the standard F, and conneoted at the bottom end by the links 9 to the lug C O is a screw which extends through the upwardly-extending end O of the plate 0 and is'designed to abut and limit the movement of the standard-plate F.

H is the holding-spindle for the lower tool, which is designed to take off the corners of the rectangular block from which the turning or ring, as in the present instance, is made. (See dotted lines, Fig. 1.) The spindle H is provided with a flange hand reduced end 71., into which extends a bolt it through a washer k at the opposite side of the vertical opening f of the standard. The opposite end of the spindle H is threaded and provided with a longitudinal slot 72. and two adjustable collars 77. and 71.", between which the tool 2 may be longitudinally adjusted and held within the slot h. I

3 are the upper tools, which are-designed to cut around from the outer periphery to the center of the inner periphery of the ring 4 on each side of the ring. The tools 3 are held in position by the clamping-plate 5 and nuts 6, fitting the upper ends of the bolts 7, extending upwardly from the standard F.

It will be seen from this description that the tool 2 may be readily adjusted vertically, so as to take off the corners of different-sized blocks. It will also be seen that by manipulating the handle 9 the standard F and tools 3 may be brought nearer to or farther from the work, depending on the nature of the work, and also that by such handle the rection indicated by-arrow the tool 3 will cut from the center of the periphery on the outside immediately to the foreground to the;

center of the periphery on the inside, and by swinging the handle around in the opposite direction the remaining portion of the article i is completed, and this, too, with only the manipulation of one lever. By this means it will be readily understood that not only are the tools brought into proximity with the block to roughly turn it, but also are brought j into position to turn out the ring complete merely by the manipulation of :one lever, which is an important :desideratum, as it .ef-g fectua'lly provides for a more rapid turning; out of the ring or ball, as the case may be, 3 than has heretofore been accomplished. The 2 amount of skilled labor is also necessarily re- 5 duced to a minimum by this simple attach- Another advantage I obtain is that If can turn rings from a larger diameter piece, and then turn rings from such piece as it is, being reduced in diameter Without stopping ment.

the lathe.

What I claimas my invention is- 1. The combination with the mandrels, of the bed-plate adjustably supported, the annular guiding-ring on the same, the circular,

plate provided with a groove to fit the ring and guiding-ribs on the bedplate, the standard-plateand standard fitting within ribson the circular plate, the toolssupported in the plate and the lever pivoted to lugs in the standard and connected by links to a lug on the circular plate as and for the purpose specified. U

2. In a machine of the class described, the

combination with the standard, of the holdextending through the opposite side of the opening into the reduced end, and the tool extending through a slot and theadjustable collars all arranged as and for the purpose specified.

4. The combination with thestandard and two tools extending one on each side of the block and suitably held -on the standard, of the circular plate provided withguiding-ri-bs andacircular groove at the bottom and the bed-plate provided with -a circular projection fitting the aforesaid groove and the lever suitably connected to the standard and designed to rotate and move the same longitudinally as and for the purpose specified.

GEORGE REYNOLDS,

Witnesses:

B. BOY-D, A. H. MoApA-M. 

